Any one ever take off their oil cap and smell it ? mine smells like fuel... is that normal? Also there was some foamy white **** in there.

 

yeah smelling like gas is normal. the gas and oil get a little mixed up

 

yup that is normal

 

so there is fuel in the oil?.... is that what causes the foam?.....also I use to use 20w50 in the car but rotorsports racing told me to use 10w40 ....what does everyone else use?

 

yeah after a while you get some gas in the oil. just change the oil atleast every 3k miles. i don't know what causes the foam but every car does it. maybe condensation in the oil system ? i run 20w50 castrol GTX

 

it probably happens more often if you run rich, and from what I understand it's more common on the turbo cars. The fuel is getting into the oil system via the oil seals on the rotors.

 

Great I was about to get pissed I just got the car back from the shop! ok I have 1 person who uses 20 50 anyone else care to weigh in?

 

I use 15 50 Mobil one synth.

 

Common on rx7s and caused by blowby. If its really bad you'll actually see your oil level increase as gas is added to it. I heard 10w40 is bad because it needs too many viscosity modifiers added to it or something. I use mobil1 15w50. I wouldn't go thinner on a modded, high hp car.